Hydraulic lubricator.



P. MUELLER.

HYDRAULIG LUBRIGATOE.

APPLICATION FILED JULY 23, 1910.

1,024,693. Patented Apr. 30, 1912.

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Patented Apr 30, 1912.

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U N ITED STATES PATENT OFFICE.

FRANK MUELLER, OF NEW YORK, N. Y., ASSIGNOR T AMERICAN EAGLE MOTOR CAR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

HYDRAULIC LUBRICA'IOR.

Specification of Letters Patent.

Patented Apr. 30, 1912.

Application filed July 23, 1910. Serial No. 573,421.

To all whom it may concern:

Be it known that I, FRANK MUELLER, a citizen of the United States, and a resident of New York, county of Kings, and State of New York, (whose post-oflice address is 43 Exchange Place, New York city,) have invented a new and useful Improvement in Hydraulic Lubricators, of which the following is a specification.

The object of my invention is to provide a lubricator, which will be simple, economical and efficient and not liable to get out of order, and which will force oil under pressure in as many streams as desired and wherever desired, and from a single central reservoir. This object is accomplished by my invention, one embodiment of which is here inafter disclosed.

For a more particular description of my invention, reference is to be had to the accompanying drawings, forming a part hereof, in which,

Figure 1 is a side elevation, partially in sect-ion, .of a lubricator embodying my improvements. Fig. 2 is an inverted plan view of the same. Fig. 3 is a sectional view taken on the line 33 of Fig. 1, looking in the direction of the arrows. Fig. 4 is a plan view of the base. Fig. 5 is an inverted plan view of a rotating member that moves on the base shown in Fig. 4. Fig. 6 is a top plan view, partially in section, of the rotating member shown in Fig. 5, and some additional parts, and is a sectional view taken on the line 66 of Fig. 3, looking in the direction of the arrows.

Throughout the various views of the drawings, similar reference characters designate similar parts.

Hy improved lubricator 1 is provided with a base 2, which preferably has suitable perforations 3 through which bolts or screws may pass to fix the lubricator in place. Its base also has ports 4, 5, 6, 7 and 8 in the embodiment shown. It is obvious that it may be provided with any number of ports desired, and it will appear later that the only restriction upon this is that the number of ports should be an odd number. Each of these ports leads to a raised surface and following the order above given, these surfaces are numbered 9, 10, 11, 12 and 13. Each of these raised surfaces is separated from the adjacent surface by means of a depression 14, and each of these surfaces is provided with a suitable recess 15 shaped substantially as shown in Fig. 4. The center of the bottom 2 is provided with an upwardly ext ending boss or hub 16, which has a central perforation 17, which is screw threaded and adapted to receive a rod 18, which is fixed therein for a purpose that will appear below. The rod 18 and the boss 16, and the projections 9, 10, 11, 12 and 13 are all made concentric with the center of the disk, as shown in Fig. 4. The disk 1s also provided with a suitable shoulder 19, which is also concentric with the center of the disk and is adapted to fit snug against the cylindrical shell 20 of the lubricator.

The cylindrical shell 20 is made of any desiredheight, and is provided, in the con ventional manner, with a glass 21 by which the amount of oil in the lubricator can be seen. The top of the cylinder 20 is closed by a suitable cap 22 which is held in place by a nut 23 on the stem 18, and is also provided with two cap screws 24 and 25 by means of which it can be vented and filled in the conventional manner. The cylindrical shell 20 is also provided with a boss 26 on which is fixed a suitable packing box 27 and through which extends a suitable shaft 28 that carries a gear wheel on its exterior end. In the embodiment of my invention herein shown, this gear wheel 29 is a worm gear, and is fixed in any suitable manner. It is connected to a worm in any suitable manner. If desired, any other suitable gearing may be used.

The interior end of the shaft 28 is provided with a beveled gear 30, which meshes with a corresponding gear 31 fixed on the rotor 32 of the pump. This rotor 32 is journaled on the boss16 and is provided with a lower surface, which is a true plane and runs true on the surfaces 9, 10, ll, 12 and 13. It is also provided with suitable reinforcing webs 33 and with a pump barrel 34 opposite one of said webs 33 and 'between two of them, as indicated in Figs. 1, 3 and 6. The pump barrel 34 has a small cylindrical bore adapted to pass over the recesses 15 when the rotor 32 revolves about the boss 16. The rotor 32 is provided with a recess 35 in its top concentric with its axis and in this is mounted a coil spring 36, which surrounds the rod 18 for a portion of its length, and its upper end rests against a cap 37 which is fixed in place at any desired height by a set screw 88, or any other suitable means.

The lower surface of the cap 37 is suitably serrated or recessed to form a cam 39 with as many projections or recesses there are ports. The shaft 18 is preferably recessed or grooved or flattened, or otherwise formed, so that the exact position of the set screw 38 can be readily determined. This feature is not essential, but is desirable.

A yoke -10 is mounted on pivots 41, which are fixed in the rotor 82, 90 degrees from the pump barrel 84. This yoke 40 has front and rear projections t2 and L3, which are adapted to engage the cam surfaces 39. Only one projection 12 or 13 is active at one time as there exists an odd number of teeth or projections of the cam 39, so that when the projection 4-2 depresses one end of the yoke, the projection 43 is elevated, and when the projection 43 is depressed, the projection 5 2 is elevated. The yoke atO is also provided with suitable ears H, which are slotted at 15 and adapted to receive a cylindrical head 46 on the upper end of a plunger 17 that fits snugly in the pump barrel of the rotor 32 with a sliding fit, so that with the pump barrel Eat it forms a forcepump as the yoke lO rocks on its pivots 41 under the influence of the cams 89 and projections 4:2 and 4C3. The amount of this rocking will depend upon the elevation of the cap 37, which may beraised or lowered, as desired, to regulate the flow of oil from the pump. The spring 36 acts so as to keep the rotor 32 firm on the projections 9, 10, 11, 12 and 13.

In view of the foregoing, the operation of my improved pump will be readily understood. Assuming that the parts are connected, as shown in Fig. 1 and that the lubricator has been properly supplied with oil and properly connected, so that the worm gear 29 is driven at any desired speed. The operation is that the oil, which is thoroughly agitated by the moving parts of the rotor 32, runs under the same through the openings or passages 14- and thoroughly lubrieates the bottom of the rotor. The cams 39 are so fixed that when the plunger 17 passes over an opening 14, it is rising and remains ele vated for the rest of the movement. As soon as the plunger gets over a recess 15, it descends and remains in its depressed position until clear of the recess and immediately upon passing over the next opening 14 it again rises, and this operation is repeated indefinitely. Each time the plunger rises it draws oil after it, and each time it descends it forces oil out through a port, so that the ports are supplied in the following order, 4, 5, 7, 8, 6, or the reverse order, and the oil is forced by positively moving mechanical elements. All moving parts run in oil, whereby a direct and perfect lubrication of the pump is insured.

\Vhile I have shown and described one embodiment of my invention, it is obvious that it is not restricted thereto but is broad enough to cover all structures that come within the scope of the annexed claims.

hat I claim is:

1. In a device of the class described, a base with a boss thereon, passages with openings and projections, said projections being mounted concentric with said boss, a shaft fixed on said boss and concentric therewith, a rotor mounted on said boss, a spring carried by said rotor, a spring cap fixed on said shaft and provided with cams, a yoke carried by said rotor and means for mounting the same so that it oscillates under the influence of said cams, a pump in said rotor driven by said yoke and means for driving said rotor.

2. In a device of the class described, a base with a boss thereon, an odd number of passages with openings and projections, said projections being mounted concentric with said base, a shaft fixed in said boss and concentric therewith, a rotor mounted on said boss, a spring carried by said rotor, a spring cap fixed on said shaft and pro vided with cams corresponding to said projections, a yoke carried by said rotor and means for mounting the same so that it oscillates under the influence of said cams, av pump in said rotor driven by said yoke and means for driving said rotor.

FRANK MUELLER. lVitnesses O. E. Enwanns, J12, R. A. GREGORY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

